CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma

IntroductionThe combination of Myc-suppressed whole tumor cells with checkpoint inhibitors targeting CTLA-4 and PD-L1 generates a potent therapeutic cancer vaccine in a mouse neuroblastoma model. As immunotherapies translate from pre-clinical to clinical trials, the potential immune-related adverse...

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Main Authors: Xiaofang Wu, Priya Srinivasan, Mousumi Basu, Talia Zimmerman, Samuel Li, Yin Wang, Pan Zheng, Yang Liu, Anthony David Sandler
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2023.1176370/full
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author Xiaofang Wu
Priya Srinivasan
Mousumi Basu
Talia Zimmerman
Samuel Li
Yin Wang
Pan Zheng
Yang Liu
Anthony David Sandler
author_facet Xiaofang Wu
Priya Srinivasan
Mousumi Basu
Talia Zimmerman
Samuel Li
Yin Wang
Pan Zheng
Yang Liu
Anthony David Sandler
author_sort Xiaofang Wu
collection DOAJ
description IntroductionThe combination of Myc-suppressed whole tumor cells with checkpoint inhibitors targeting CTLA-4 and PD-L1 generates a potent therapeutic cancer vaccine in a mouse neuroblastoma model. As immunotherapies translate from pre-clinical to clinical trials, the potential immune-related adverse events (irAEs) associated with induction of potent immunity must be addressed. The CD24-Siglec 10/G interaction is an innate checkpoint that abrogates inflammatory responses to molecules released by damaged cells, but its role in cancer immunology is not well defined. We investigate irAEs of an effective whole cell neuroblastoma vaccine and subsequently the effect of CD24-Fc, a CD24 and Fc fusion protein, on both the vaccine efficacy and induced irAEs in a mouse neuroblastoma model.MethodsTo test whether the whole tumor cell vaccination leads to autoimmune responses in other organ systems we harvested lung, heart, kidney and colon from naïve mice (n=3), unvaccinated tumor only mice (n=3), and vaccinated mice with CD24 Fc (n=12) or human IgG-Fc control (n=12) after tumor inoculation and vaccination therapy at day 30. The Immune cell infiltrates and immunogenic pathway signatures in different organ systems were investigated using NanoString Autoimmune Profiling arrays. Nanostring RNA transcript results were validated with immunohistochemistry staining.ResultsThe whole tumor cell vaccine combined with immune checkpoint therapy triggers occult organ specific immune cell infiltrates, primarily in cardiac tissue and to a lesser extent in the renal and lung tissue, but not in the colon. CD24-Fc administration with vaccination partially impedes anti-tumor immunity but delaying CD24-Fc administration after initial vaccination reverses this effect. CD24-Fc treatment also ameliorates the autoimmune response induced by effective tumor vaccination in the heart.DiscussionThis study illustrates that the combination of Myc suppressed whole tumor cell vaccination with checkpoint inhibitors is an effective therapy, but occult immune infiltrates are induced in several organ systems in a mouse neuroblastoma model. The systemic administration of CD24-Fc suppresses autoimmune tissue responses, but appropriate timing of administration is critical for maintaining efficacy of the therapeutic vaccine.
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spelling doaj.art-9fd0de311e1d451aab33cc9cd3b3d71e2023-06-06T04:52:23ZengFrontiers Media S.A.Frontiers in Immunology1664-32242023-06-011410.3389/fimmu.2023.11763701176370CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastomaXiaofang Wu0Priya Srinivasan1Mousumi Basu2Talia Zimmerman3Samuel Li4Yin Wang5Pan Zheng6Yang Liu7Anthony David Sandler8The Joseph E. Robert Jr. Center for Surgical Care and The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Hospital, George Washington University, Washington, DC, United StatesThe Joseph E. Robert Jr. Center for Surgical Care and The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Hospital, George Washington University, Washington, DC, United StatesThe Joseph E. Robert Jr. Center for Surgical Care and The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Hospital, George Washington University, Washington, DC, United StatesThe Joseph E. Robert Jr. Center for Surgical Care and The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Hospital, George Washington University, Washington, DC, United StatesThe Joseph E. Robert Jr. Center for Surgical Care and The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Hospital, George Washington University, Washington, DC, United StatesUniversity of Maryland Medical Center, University of Maryland, Baltimore, MD, United StatesOncoC4. Inc, Rockville, MD, United StatesOncoC4. Inc, Rockville, MD, United StatesThe Joseph E. Robert Jr. Center for Surgical Care and The Sheikh Zayed Institute for Pediatric Surgical Innovation, Children’s National Hospital, George Washington University, Washington, DC, United StatesIntroductionThe combination of Myc-suppressed whole tumor cells with checkpoint inhibitors targeting CTLA-4 and PD-L1 generates a potent therapeutic cancer vaccine in a mouse neuroblastoma model. As immunotherapies translate from pre-clinical to clinical trials, the potential immune-related adverse events (irAEs) associated with induction of potent immunity must be addressed. The CD24-Siglec 10/G interaction is an innate checkpoint that abrogates inflammatory responses to molecules released by damaged cells, but its role in cancer immunology is not well defined. We investigate irAEs of an effective whole cell neuroblastoma vaccine and subsequently the effect of CD24-Fc, a CD24 and Fc fusion protein, on both the vaccine efficacy and induced irAEs in a mouse neuroblastoma model.MethodsTo test whether the whole tumor cell vaccination leads to autoimmune responses in other organ systems we harvested lung, heart, kidney and colon from naïve mice (n=3), unvaccinated tumor only mice (n=3), and vaccinated mice with CD24 Fc (n=12) or human IgG-Fc control (n=12) after tumor inoculation and vaccination therapy at day 30. The Immune cell infiltrates and immunogenic pathway signatures in different organ systems were investigated using NanoString Autoimmune Profiling arrays. Nanostring RNA transcript results were validated with immunohistochemistry staining.ResultsThe whole tumor cell vaccine combined with immune checkpoint therapy triggers occult organ specific immune cell infiltrates, primarily in cardiac tissue and to a lesser extent in the renal and lung tissue, but not in the colon. CD24-Fc administration with vaccination partially impedes anti-tumor immunity but delaying CD24-Fc administration after initial vaccination reverses this effect. CD24-Fc treatment also ameliorates the autoimmune response induced by effective tumor vaccination in the heart.DiscussionThis study illustrates that the combination of Myc suppressed whole tumor cell vaccination with checkpoint inhibitors is an effective therapy, but occult immune infiltrates are induced in several organ systems in a mouse neuroblastoma model. The systemic administration of CD24-Fc suppresses autoimmune tissue responses, but appropriate timing of administration is critical for maintaining efficacy of the therapeutic vaccine.https://www.frontiersin.org/articles/10.3389/fimmu.2023.1176370/fullCD24Fctumor cell vaccineneuroblastomaimmune-related adverse eventsautoimmune profiling
spellingShingle Xiaofang Wu
Priya Srinivasan
Mousumi Basu
Talia Zimmerman
Samuel Li
Yin Wang
Pan Zheng
Yang Liu
Anthony David Sandler
CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
Frontiers in Immunology
CD24Fc
tumor cell vaccine
neuroblastoma
immune-related adverse events
autoimmune profiling
title CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
title_full CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
title_fullStr CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
title_full_unstemmed CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
title_short CD24-Fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
title_sort cd24 fc suppression of immune related adverse events in a therapeutic cancer vaccine model of murine neuroblastoma
topic CD24Fc
tumor cell vaccine
neuroblastoma
immune-related adverse events
autoimmune profiling
url https://www.frontiersin.org/articles/10.3389/fimmu.2023.1176370/full
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